Tests: Local tests

[PascalinDe]

• 4+ nodes, randomly shutting down up to f = (n - 1) / 3 nodes / restarting nodes
  • create form
  • cast votes
  • finalize election
• test 100 elections with 2000 votes each
  • draw a figure with the medium time to response over the 200k votes
  • stress-test with many simultaneous votes (in practice probably not more than 10 votes / minute)
• for each form of election (rank, select, text)
  • create form
  • cast votes
  • finalize election

[PascalinDe]

@ineiti , @lanterno , @pierluca feel free to add test cases!

[pierluca]

4+ nodes was tested by DEDIS a while back.

This was broken a while back, should have been fixed since this. Let me know how it goes.

100 elections with 2000 votes each

Related fixes have happened here and there.
One of the performance bottlenecks, if not the main one, is going to be this (i.e., not having implemented multi-level skipchain links).

I'd also consider adding:

• load test voting, i.e. massively submitting votes at the same time

It should be covered by an integration test - is it stable though?

[PascalinDe]

closing this to replace w/ more precise tickets